Ages 14-16

Lady climbing

From strength to strength

How do muscles affect sporting performance?

From strength to strength is a group of four experiments all about muscle strength and endurance. Students carry out a range of experiments investigating correlations between their muscle size, strength and endurance. They will analyse their results to explore questions such as whether fatiguing one set of muscles impacts the performance of different muscles.

The experiments can be carried out in the science classroom but there is an opportunity for collaboration with your PE department and use of their facilities. Download comprehensive teacher and student resources here.

Measuring biceps

The experiments

In this set of experiments your students will be exploring the body's muscles, their function and what happens when you do exercise. Specifically they will be investigating skeletal muscles - the ones that move the skeleton's bones about.

Find out more about the experiments

Teacher resources

Everything you'll need for each lesson in this unit, including:

  • An introduction and curriculum guide
  • Equipment instructions
  • Technician notes
  • Lesson plans and teacher sheets
  • Student knowledge cards and worksheets

View resources

Live Data Zone

Done the experiments? Now upload your results to the Live Data Zone. You can find out who has better upper or lower body strength in your school and across the UK, and analyse the data set for trends using interactive graphs.

Go to the Live Data Zone

Any questions?

If you need information or or have a question about In the Zone, please view our help and support page, which answers some frequently asked questions.

If you can't find the answer to your question, please contact us and we'll do our best to help.

If you have specific questions about the experiments or using the resources for this unit, please view the frequently asked questions about In the Zone for ages 14-16.

View FAQs for ages 14-16


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What a great opportunity to get ahead of the games and use your In the Zone kit to bring some of the excitement of these major sporting events into your classroom. You can use the kit to help your pupils discover the science behind the performance of elite footballers like Wayne Rooney, Messi and Cristiano Ronaldo and what happens in the bodies of top athletes such as Usain Bolt and Mo Farrar when they push themselves to the limit in their quest for gold.

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We're counting down to some exceptional sport at the Winter Olympics in Sochi, and have enjoyed watching In the Zone's champion, Sir Steve Redgrave CBE, on Channel 4's 'The Jump'. To give you some ideas of how to excite your students, here are some suggestions for how to get In the Zone… in the cold! Brrrrr.

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Take It Further

If you've enjoyed In the Zone, here are some ways to extend your In the Zone experience; places to learn more about science and movement; and links to related information.

Find out more

Any questions?

If you need information or have a question about In the Zone, please view our help and support page which contains FAQs and support for the experiments. You can also contact us by email or telephone.

More information